<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <!-- React核心包 最先引入 提供一个对象React -->
  <script src="../react18/react.development.js"></script>
  <!-- React操作DOM的包 提供了一个对象 ReactDOM -->
  <script src="../react18/react-dom.development.js"></script>
</head>

<body>
  <div id="app"></div>
  <script>
    // 创建一个虚拟DOM
    const VDOM = React.createElement("h1", {}, "嗨嗨嗨")

    // 把虚拟DOM交给React渲染到页面中
    ReactDOM.createRoot(document.getElementById("app")).render(VDOM)
  </script>
</body>

</html>